Twofish
E299185
Twofish is a symmetric key block cipher known for its speed, flexibility, and strong security, and was a finalist in the competition to become the Advanced Encryption Standard (AES).
All labels observed (1)
| Label | Occurrences |
|---|---|
| Twofish canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T2792451 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Twofish Context triple: [GNU Privacy Guard, supportsAlgorithm, Twofish]
-
A.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
B.
Salsa20
Salsa20 is a high-speed stream cipher designed by Daniel J. Bernstein, widely used in modern cryptography for its strong security and efficient software performance.
-
C.
RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
-
D.
Advanced Encryption Standard
Advanced Encryption Standard is a widely used symmetric block cipher standard that secures digital data in applications ranging from wireless networks to government communications.
-
E.
RC6
RC6 is a symmetric block cipher designed as a candidate for the Advanced Encryption Standard (AES), known for its simplicity, efficiency, and parameterized structure.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Twofish Target entity description: Twofish is a symmetric key block cipher known for its speed, flexibility, and strong security, and was a finalist in the competition to become the Advanced Encryption Standard (AES).
-
A.
Rijndael
Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
-
B.
Salsa20
Salsa20 is a high-speed stream cipher designed by Daniel J. Bernstein, widely used in modern cryptography for its strong security and efficient software performance.
-
C.
RC5
RC5 is a symmetric-key block cipher designed by cryptographer Ronald L. Rivest, known for its simplicity, parameter flexibility, and use in various encryption applications.
-
D.
Advanced Encryption Standard
Advanced Encryption Standard is a widely used symmetric block cipher standard that secures digital data in applications ranging from wireless networks to government communications.
-
E.
RC6
RC6 is a symmetric block cipher designed as a candidate for the Advanced Encryption Standard (AES), known for its simplicity, efficiency, and parameterized structure.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Feistel network cipher
ⓘ
block cipher ⓘ symmetric-key algorithm ⓘ |
| blockSize | 128 bits ⓘ |
| cipherType | substitution–permutation-like network ⓘ |
| comparedWith |
MARS
ⓘ
RC6 ⓘ Rijndael ⓘ Serpent ⓘ |
| competitionResult | AES finalist but not selected as AES ⓘ |
| designedBy |
Bruce Schneier
ⓘ
Chris Hall ⓘ David Wagner ⓘ Doug Whiting ⓘ John Kelsey ⓘ Niels Ferguson ⓘ |
| designedByOrganization | Counterpane Systems ⓘ |
| designedFor |
128-bit block encryption
ⓘ
flexibility ⓘ high security ⓘ software efficiency ⓘ |
| hasComponent |
MDS matrix
ⓘ
key-dependent S-boxes ⓘ pseudo-Hadamard transform ⓘ |
| keySize |
128 bits
ⓘ
192 bits ⓘ 256 bits ⓘ |
| patented | false ⓘ |
| publicDomain | true ⓘ |
| publishedIn | 1998 ⓘ |
| relatedTo | Blowfish ⓘ |
| rounds | 16 ⓘ |
| securityStatus | no practical attacks known on full-round cipher ⓘ |
| standardizedIn | RFC 2451 ⓘ |
| submissionYear | 1998 ⓘ |
| submittedTo | AES competition ⓘ |
| successorTo | Blowfish ⓘ |
| supports |
decryption
ⓘ
encryption ⓘ |
| supportsKeyWhitening | true ⓘ |
| supportsPrecomputedKeySchedule | true ⓘ |
| usedIn |
GnuPG (historically, via libraries)
ⓘ
PGP ⓘ |
| usesFeistelStructure | true ⓘ |
| usesKeyDependentSBoxes | true ⓘ |
| usesMDSMatrix | true ⓘ |
| usesPHT | true ⓘ |
| wasAESFinalist | true ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Twofish Description of subject: Twofish is a symmetric key block cipher known for its speed, flexibility, and strong security, and was a finalist in the competition to become the Advanced Encryption Standard (AES).
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.